Answer:
58°
Step-by-step explanation:
all triangles add up to 180
65 + 57 = 122
180 - 122 = 58
Check:
65 + 57 + 58 = 180
Answer: 58
Step-by-step explanation:
So the 3 angles on a triangle ALWAYS add up to 180. In this case the two angles that are already given to you 65 and 57 add up to 122 degrees. With that information you know the answer is 58 because you take the angle measurments you all ready have (122) you take 180 because how much all three angles add up to and subtract that from 122 because those are that angles you have been given to get 58.
Marka s brainliest if this helped and if you have any questions let me know and I will do my best to you out!
